Duodenal ulcer in childhood.
D000293:Adolescent; D000367:Age Factors; D002648:Child; D002675:Child, Preschool; D004381:Duodenal Ulcer / Q000175:diagnosis / Q000453:epidemiology* / Q000628:therapy; D005260:Female; D005753:Gastric Mucosa / Q000378:metabolism; D006471:Gastrointestinal Hemorrhage / Q000453:epidemiology; D006801:Humans; D007223:Infant; D007231:Infant, Newborn; D008297:Male; D010439:Peptic Ulcer Perforation / Q000453:epidemiology